The 67th JSAP Spring Meeting 2020

Presentation information

Oral presentation

6 Thin Films and Surfaces » 6.5 Surface Physics, Vacuum

[14p-D519-1~9] 6.5 Surface Physics, Vacuum

Sat. Mar 14, 2020 1:30 PM - 4:00 PM D519 (11-519)

Azusa Hattori(Osaka Univ.)

1:30 PM - 1:45 PM

[14p-D519-1] Perylene and bromine on Au(111) surface

Osamu Endo1,2, Wang J. Chun2, Masashi Nakamura3, Kenta Amemiya4, Hiroyuki Ozaki1 (1.TUAT, 2.ICU, 3.Chiba Univ., 4.KEK IMSS PF)

Keywords:organic semiconductor, STM, C K-NEXAFS

The changes of geometric and electronic structures induced by bromine doping onto the perylene monolayer on a Au(111) surface is studied by scanning tunneling microscopy and X-ray absorption fine structure spectroscopy at the near carbon K-edge. At the initial stage, bromine molecules adsorbed in line on the 4x4 super structure of perylene and induce a partial charge transfer. As the doping amount increases, perylene molecules are cationized and form another two-dimensional super structure with an enlarged lattice constant.

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